Physics Lecture – 38 – Velocity of a Wave Formula

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20 responses to “Physics Lecture – 38 – Velocity of a Wave Formula”

  1. Da Taby Kat Avatar

    How'd you get 83? I'm so confused

  2. fortshame its true Avatar

    2:46 man i think i skipped the step to grab a bb gun

  3. Dylan Parker Avatar

    for those who are interested, the symbol used here for wave length is indeed a greek letter (called lambda)

    conventionally, the symbol used for (angular) frequency is also a greek letter, called omega. In it lower case form, omega looks a lot like the letter "w".

    i think this might explain why we don't use a "w" to represent wavelength

    ps conventionally, "f" is used to denote linear frequency (as it does in this video)

  4. ProGame Emman- Avatar

    Thanks to this. Now i know

  5. PirateKing123 Avatar

    how can you find the frequency when you dont know the velocity,

  6. HJC681056 Avatar

    thank you very easy to understand and execute.

  7. IndustrialDonut Avatar

    Is the velocity of a wave in a given medium always constant? Such as, sound always travels at 343m/s at sea level, and light always travels at, well, the speed of light be it a little bit slower when traveling through air of course, but regarding like water waves, do they always 'travel' at the same velocity? This formula and explanation of it here are spot on and really nice, but I am just so stuck on this in particular..

  8. Tori Adams Avatar

    THANK YOU IMMA PASS SCIENCE NOW!!!

  9. gvs puk yion Avatar

    where's the 1 over 12(s) come from?is it from the 5W over 1min?

  10. Davilen Perianen Avatar

    That f was nicely done mate !

  11. MK4 Avatar

    before u do zat, tek a BB gun and shoot teh dog tats barking on mi

  12. RoseLove2001 Avatar

    "so, in order to find the velocity, first of all you have to grab a BB Gun and shoot this dog across from me that's barking right now, when you're done with that,…" I hope the dogs okay! Than you for this video. I understand this now.

  13. Ishan Kumar Avatar

    called lambda giggidy

  14. Donald Moon Avatar

    what is the speed of a wave in a vacuum ?

  15. Deaume Avatar

    "…, so, in order to find the velocity, first of all you have to grab a BB Gun and shoot this dog across from me that's barking right now, when you're done with that, …"

  16. jhon doe Avatar

    he is surfing while measureing waves of water with a tape measurer

  17. Matt G Avatar

    Thanks for the clear explanation. I was trying to understand this from a Khan Academy video. He got me so freaking confused…lol (Don't get me wrong ..I respect his knowledge) Just glad I found your video for a clearer explanation. p.s. Hope the dog is ok …lol

  18. thenewboston Avatar

    haha no one in particular, just the first thing that came to my mind

  19. R3sp3ctMyGam3 Avatar

    It's lamda->λάμδα

  20. Kevin Johansson Avatar

    The greek symbol at the start is Lambda.

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